Ultimate Ears UE-5 Ambient - 2-way stereo earphones, 12dB filter, changeable to 26dB variable, perfect comfort (requires casting from a hearing-aid specialist), plug-in cable system, hard moulded earpiece, various colours available on request, 20Hz-18kHz, 119dB/mW sensitivity, 21 ohm impedance, includes metal case. 3 months warranty for the cable! - Please Note: 'custom-made artikle, After you place your order you will receivean email with instructions for making the ear impressions. Delivery time after receipt of the ear impressions will be between 3-4 weeks. For custom orders no Money Back Guarantee may be granted.